Evidence map›Paper›PMID 33095083›Full record

ReviewAnnals of medicine2021

Hydroxychloroquine: a comprehensive review and its controversial role in coronavirus disease 2019.

Pankaj Bansal, Amandeep Goyal, Austin Cusick, Shubham Lahan, Harpal S Dhaliwal, Poonam Bhyan, Pradnya Brijmohan Bhattad, Fawad Aslam, Sagar Ranka, Tarun Dalia and 4 more

Abstract readReview
In one paragraph

Review in Annals of medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Post-COVID-19 Jaw Osteonecrosis: A Narrative Review.Medicina (Kaunas, Lithuania) · 2026
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Safety of Hydroxychloroquine: What a Dermatologist Should Know.American journal of clinical dermatology · 2025
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Pankaj BansalMayo Clinic Health System, Eau Claire, WI, USA.ORCID 0000-0001-6315-6879
Amandeep GoyalUniversity of Kansas Medical Center, Kansas City, KS, USA.ORCID 0000-0001-6070-1747
Austin CusickOhio University Heritage College of Osteopathic Medicine, Athens, OH, USA.
Shubham LahanUniversity College of Medical Sciences, New Delhi, India.
Harpal S DhaliwalChristian Medical College and Hospital, Ludhiana, India.
Poonam BhyanCape Fear Valley Hospital, Fayetteville, NC, USA.
Pradnya Brijmohan BhattadEast Tennessee State University, Johnson City, TN, USA.
Fawad AslamMayo Clinic, Scottsdale, AZ, USA, USA.
Sagar RankaUniversity of Kansas Medical Center, Kansas City, KS, USA.
Tarun DaliaUniversity of Kansas Medical Center, Kansas City, KS, USA.
Lovely ChhabraHeartland Regional Medical Center, Southern IL University, Carbondale, IL, USA.ORCID 0000-0002-9193-5981
Devang SanghaviMayo Clinic, Jacksonville, FL, USA.
Bhavin SonaniHSHS St John's Hospital, Springfield, IL, USA.
John M DavisMayo Clinic, Rochester, MN, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydroxychloroquine, initially used as an antimalarial, is used as an immunomodulatory and anti-inflammatory agent for the management of autoimmune and rheumatic diseases such as systemic lupus erythematosus. Lately, there has been interest in its potential efficacy against severe acute respiratory syndrome coronavirus 2, with several speculated mechanisms. The purpose of this review is to elaborate on the mechanisms surrounding hydroxychloroquine. The review is an in-depth analysis of the antimalarial, immunomodulatory, and antiviral mechanisms of hydroxychloroquine, with detailed and novel pictorial explanations. The mechanisms of hydroxychloroquine are related to potential cardiotoxic manifestations and demonstrate potential adverse effects when used for coronavirus disease 2019 (COVID-19). Finally, current literature associated with hydroxychloroquine and COVID-19 has been analyzed to interrelate the mechanisms, adverse effects, and use of hydroxychloroquine in the current pandemic. Currently, there is insufficient evidence about the efficacy and safety of hydroxychloroquine in COVID-19. KEY MESSAGES HCQ, initially an antimalarial agent, is used as an immunomodulatory agent for managing several autoimmune diseases, for which its efficacy is linked to inhibiting lysosomal antigen processing, MHC-II antigen presentation, and TLR functions. HCQ is generally well-tolerated although severe life-threatening adverse effects including cardiomyopathy and conduction defects have been reported. HCQ use in COVID-19 should be discouraged outside clinical trials under strict medical supervision.

Indexed as

AntimalarialsCardiotoxicityClinical Trials as TopicCoronavirus InfectionsCOVID-19COVID-19 Drug TreatmentHumansHydroxychloroquinePandemicsPneumonia, ViralAntimalarialsHydroxychloroquinecardiotoxicityCOVID-19Hydroxychloroquinemechanism of action

Identifiers

PMID33095083
PMCPMC7880079

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.